PRODUCT DATASHEET
AAT3195
ChargePump
TM
4-Channel Charge-Pump LED Driver
Electrical Characteristics
IN = EN = 3.6V; C
IN
= 1
μF;
C
OUT
= 1μF; C
CP
= 1μF; T
A
=-40°C to 85°C unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
Description
Conditions
Min
1.4
EN/SET
≥
V
EN(H)
-1
0.4
1
500
500
75
50
75
1.4
EN/PWM = IN = 5V
Typ
Max
Units
V
V
μA
μs
μs
μs
ns
μs
V
V
μA
μs
ms
kHz
AAT3195-1/-2: EN/SET and S
2
Cwire Control
EN Input High Threshold Voltage
V
EN(H)
V
EN(L)
EN Input Low Threshold Voltage
I
EN(LKG)
EN Input Leakage Current
t
EN/SET(OFF)
EN/SET Input OFF Timeout
t
EN/SET(LAT)
EN/SET Input Latch Timeout
EN/SET Input LOW Time
t
EN/SET(LOW)
t
ENSET(H-MIN)
EN/SET Minimum High Time
t
ENSET(H-MAX)
EN/SET Maximum High Time
AAT3195-3: EN/PWM Current Control
V
EN(H)
EN/PWM Input High Threshold Voltage
V
EN(L)
EN/PWM Input Low Threshold Voltage
I
EN(LKG)
EN/PWM Input Leakage Current
PWM Control Turn-On Delay
t
PWM(ON)
t
EN/PWM
EN/PWM Input OFF Timeout
PWM Control Frequency
f
PWM
0.3
-1
2
0.15
0.4
1
1
50
Duty Cycle = 80%
3195.2009.06.1.3
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